Add to ORKGI present the first 1.3-mm observations of a complete sample of 10 X-ray- selected BL Lacertae objects (XBLs), together with complementary measurements of a complete sample of nine radio-selected BL Lacs (RBLs). Three XBLs have firm detections and one has a marginally significant detection. None of the XBLs has a radio spectrum rising steeply into the millimetre region, and the radio-millimetre spectral indices of the XBLs detected are within the range found for the RBLs. However, the overall millimetre-X-ray spectra of the XBLs are much flatter than for any RBL
We present a radio/optical study of a sample of BL Lac objects at arcsecond and milliarcsecond resol...
We discuss alternative interpretations of the differences in the spectral energy distributions (SEDs...
ROSAT data as well as archival radio and optical data are used for a broad band study of a large gro...
I present the first 1.3-mm observations of a complete sample of 10 X-ray- selected BL Lacertae objec...
Observations at millimetre wavelengths are presented for a representative sample of 22 X-ray-selecte...
Observations at millimetre wavelengths are presented for a representative sample of 22 X-ray-selecte...
Seven BL Lac objects have been photometrically observed in an effort to study the difference of opt...
Using the sample of radio selected BL Lacertae objects (RBLs) and X-ray selected BL Lacertae objects...
Using the sample of radio-selected BL Lacertae objects (RBLs) and X-ray selected BL Lacertae objects...
Simultaneous multiwavelength observations of BL Lacertae were performed on two occasions separated b...
In a previous paper, we proposed a new method to select low-power BL Lacs (LPBLs) based on mid-infra...
We present the radio detection of 18 BL Lac objects from our survey of over 575 deg2 of sky. These 1...
We present recent ROSAT, ASCA and SAX observations of intermediate BL Lac objects (IBLs), i.e. BL La...
ROSAT observations of a homogeneous sample of radio{selected BL Lac ob-jects are presented. Results ...
BL Lac objects are similar to the flat spectrum radio quasars in many aspects except regarding the e...
We present a radio/optical study of a sample of BL Lac objects at arcsecond and milliarcsecond resol...
We discuss alternative interpretations of the differences in the spectral energy distributions (SEDs...
ROSAT data as well as archival radio and optical data are used for a broad band study of a large gro...
I present the first 1.3-mm observations of a complete sample of 10 X-ray- selected BL Lacertae objec...
Observations at millimetre wavelengths are presented for a representative sample of 22 X-ray-selecte...
Observations at millimetre wavelengths are presented for a representative sample of 22 X-ray-selecte...
Seven BL Lac objects have been photometrically observed in an effort to study the difference of opt...
Using the sample of radio selected BL Lacertae objects (RBLs) and X-ray selected BL Lacertae objects...
Using the sample of radio-selected BL Lacertae objects (RBLs) and X-ray selected BL Lacertae objects...
Simultaneous multiwavelength observations of BL Lacertae were performed on two occasions separated b...
In a previous paper, we proposed a new method to select low-power BL Lacs (LPBLs) based on mid-infra...
We present the radio detection of 18 BL Lac objects from our survey of over 575 deg2 of sky. These 1...
We present recent ROSAT, ASCA and SAX observations of intermediate BL Lac objects (IBLs), i.e. BL La...
ROSAT observations of a homogeneous sample of radio{selected BL Lac ob-jects are presented. Results ...
BL Lac objects are similar to the flat spectrum radio quasars in many aspects except regarding the e...
We present a radio/optical study of a sample of BL Lac objects at arcsecond and milliarcsecond resol...
We discuss alternative interpretations of the differences in the spectral energy distributions (SEDs...
ROSAT data as well as archival radio and optical data are used for a broad band study of a large gro...